Federal Data Center Consolidation: By The Numbers

Go inside the federal government's data center consolidation initiative, which aims to save $5 billion. See who's closing the most data centers, where, and how else the picture is changing.

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With its far-flung operations and massive scale, the Department of Defense accounted for nearly a third of the federal government's data centers when agencies tallied them in 2010. The Department of State, with bureaus, embassies, and other posts around the world, was a distant second.

There's no doubt Google has made headway into businesses: Just 28 percent discourage or ban use of its productivity ­products, and 69 percent cite Google Apps' good or excellent ­mobility. But progress could still stall: 59 percent of nonusers ­distrust the security of Google's cloud. Its data privacy is an open question, and 37 percent worry about integration.